The research examined the associations of running with all-cause and cardiovascular mortality risks in 55,137 adults, between the age of 18 to 100, who received at least 1 extensive medical examination between 1974 and 2002. Out of 5,089 of adults who ran 51-80mins and 81-119mins reported a death rate of 29.7% and 29.8% respectively.

On the other hand, among the 42,121 sedentary non-runners, there is a death rate of a whopping 45.9%. Death rate due to cardiovascular diseases for non-runners is at 17.8%, compared to the mean death rate of 9.6 among runners of various intensity.

Moving is Key

The key to a healthier lifestyle is to keep active. According to the aforementioned report, the group of participants who do not run accounted for 16% of all-cause and 25% of cardiovascular disease (CVD) mortality.

Another study, The Copenhagen City Heart Study, done in 2015 also managed to support the report. The result from the later study claimed that “compared with sedentary nonjoggers, 1 to 2.4 hour(s) of jogging per week was associated with the lowest mortality”.

The reason behind this is simple. When you exercise, your heart beat increases in order to pump more blood to supply your muscle tissues with oxygen. Over time, such involuntary actions will help to expand both the atria (the top part of your heart where blood return from the rest of your body – except for your lungs) and the ventricles (the bottom part of your heart where blood is pumped out of your heart) to be enlarged. This is, therefore, help to increase the efficiency of your heart.

As more blood is able to be pumped out of the body, it will increase the flexibility of the arteries too. This is to allow more blood flow during exercise and also prevent arteries blockage even when you are in sedentary position. As a result, the risk of cardiovascular diseases such as coronary artery disease (CAD) will be greatly reduced.

More doesn’t mean better

However, although we always encourage everyone to push their limits, it is advisable not to overdo and overexert yourself. It is especially so when your primary goal is just to be healthy.

U-SHAPE RELATION: Studies suggest a U-shaped association between mortality rates and the amount of running you do. (Image: JACC)